Patent CA635934A successfully refreshed from Google Patents.
Patent US3792708A successfully refreshed from Google Patents.
US3792708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid flow director
Assignee: Individual
•
Filing: 1971-06-16
•
Granted: 1974-02-19
•
Expires: 1991-06-16
Abstract
Abstract A valved flushing device consisting of an elastomeric tube having one end adapted to be connected to a suitable source of water and having a valve disposed in its opposite end, the valve opening in response to the expansion of the elastomeric member into sealing engagement with the internal diameter of a pipe that it is desired to unclog. The alternate opening and closing of the valve due to pressure build up and release causing the valve to emit pulsating jets of high pressure water into the clogged pipe in order to dislodge the material clogging the pipe.
Inventors
- 👤 G Tash
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:03
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/032; B08B9/0321; B08B9/0322; B05; B05B; B05B1/00; B05B1/02; B05B1/08; B05B1/083; B05B1/086; E; E03; E03F; E03F9/00; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7879
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
218 words
In slidable combination with a conduit, a flushing device comprising: a tubular elastomeric body adapted to expand laterally of its longitudinal axis against said conduit; a source of water; a connecting means secured to one end of said body and adapted to connect said body to said source of water; a face plate having a diameter larger than the internal diameter of said body, said face plate disposed within said body intermediate its ends and adjacent its free end, said body being laterally expanded by said face plate and lying in contracting engagement with the circumference of said face plate; support means secured on one end to the free end of said body and on its opposite end to said face plate, said support means having at least one opening therein, whereby when water enters said body from said source, said body expands and upon achieving a predetermined expanded diameter said body moves into spaced relationship to the circumference of said face plate, thereby allowing the entrapped water to flow around said face plate and pass through the opening in said support means and discharge through the free end of said body; and means disposed within said body and connected to opposite ends thereof, whereby said body is prevented from extending longitudinally while being permitted to expand laterally.
Claim 2
Dependent Claim
218 words
In slidable combination with a conduit, a flushing device comprising: a tubular elastomeric body adapted to expand laterally of its longitudinal axis against said conduit; a source of water; a connecting means secured to one end of said body and adapted to connect said body to said source of water; a face plate having a diameter larger than the internal diameter of said body, said face plate disposed within said body intermediate its ends and adjacent its free end, said body being laterally expanded by said face plate and lying in contracting engagement with the circumference of said face plate; support means secured on one end to the free end of said body and on its opposite end to said face plate, said support means having at least one opening therein, whereby when water enters said body from said source, said body expands and upon achieving a predetermined expanded diameter said body moves into spaced relationship to the circumference of said face plate, thereby allowing the entrapped water to flow around said face plate and pass through the opening in said support means and discharge through the free end of said body; and means disposed within said body and connected to opposite ends thereof, whereby said body is prevented from extending longitudinally while being permitted to expand laterally.
Claim 3
Dependent Claim
54 words
A flushing device in accordance with claim 1, wherein said face plate has a restrictive orifice extending therethrough, whereby entrapped water within said body is permitted to leak out after incoming water is discontinued, thereby allowing said body to return to its normal diameter in contracting engagement to the circumference of said face plate.
Claim 4
Dependent Claim
182 words
In slidable combination with a conduit, a flushing device comprising: a tubular elastomeric body adapted to expand laterally of its longitudinal axis against said conduit; connecting means secured to one end of said body and adapted to connect said body to a source of water; a face plate having a diameter greater than the internal diameter of said body, disposed within said body intermediate its ends, the outer diameter of said body being laterally expanded by said face plate and lying in contracting sealing engagement with the circumference of said face plate, support means secured to said face plate and said body whereby said face plate is held in a fixed position, said support means having at least one opening therein, whereby when water enters said body from the Source said body expands and upon achieving a predetermined expanded diameter said body moves into spaced relationship to the circumference of said fixed face plate, thereby allowing the entrapped water to flow around said face plate, pass through the opening in said support means and discharge through the free end of said body.
Claim 5
Dependent Claim
182 words
In slidable combination with a conduit, a flushing device comprising: a tubular elastomeric body adapted to expand laterally of its longitudinal axis against said conduit; connecting means secured to one end of said body and adapted to connect said body to a source of water; a face plate having a diameter greater than the internal diameter of said body, disposed within said body intermediate its ends, the outer diameter of said body being laterally expanded by said face plate and lying in contracting sealing engagement with the circumference of said face plate, support means secured to said face plate and said body whereby said face plate is held in a fixed position, said support means having at least one opening therein, whereby when water enters said body from the Source said body expands and upon achieving a predetermined expanded diameter said body moves into spaced relationship to the circumference of said fixed face plate, thereby allowing the entrapped water to flow around said face plate, pass through the opening in said support means and discharge through the free end of said body.
Claim 6
Dependent Claim
29 words
A flushing device in accordance with claim 3, further comprising means disposed within said body and connected to opposite ends thereof for limiting the longitudinal expansion of said body.
Claim 7
Dependent Claim
141 words
A flushing device comprising: a tubular elastomeric body, means for connecting said body to a source of water, a face plate having a diameter greater than the internal diameter of said body, disposed within said body intermediate its ends, said body lying in sealing engagement with the circumference of said face plate; a spring means secured to said face plate and said body, whereby said face plate is held in a fixed position, said spring means having at least one opening therein, whereby when water enters said body from the source said body expands and upon achieving a predetermined expanded diameter said body moves into spaced relationship to the circumference of said face plate, thereby allowing the entrapped water to flow around said face plate, pass through the opening in said spring and discharge through the free end of said body.
Claim 8
Dependent Claim
141 words
A flushing device comprising: a tubular elastomeric body, means for connecting said body to a source of water, a face plate having a diameter greater than the internal diameter of said body, disposed within said body intermediate its ends, said body lying in sealing engagement with the circumference of said face plate; a spring means secured to said face plate and said body, whereby said face plate is held in a fixed position, said spring means having at least one opening therein, whereby when water enters said body from the source said body expands and upon achieving a predetermined expanded diameter said body moves into spaced relationship to the circumference of said face plate, thereby allowing the entrapped water to flow around said face plate, pass through the opening in said spring and discharge through the free end of said body.
Claim 9
Dependent Claim
38 words
A flushing device in accordance with claim 5, wherein said face plate has an orifice extending therethrough, the orifice having a diameter sufficient to allow water within said body to discharge therethrough upon the cessation of incoming water.
Claim 10
Dependent Claim
63 words
A flushing device in accordance with claim 5, further comprising a string disposed through said body, said string being secured on one end to one end of said body and on the other end to the opposite end of said body, whereby said body is prevented from elongating beyond the length of said string while being allowed to expand laterally of said string.
References Cited (Backward Citations)
US1745304A
Cited
US1848269A
Cited
US1893979A
Cited
US2098886A
Cited
US2598122A
Cited
US2663309A
Cited
US2747608A
Cited
US2818880A
Cited
US3086540A
Cited
US3146460A
Cited
US3595255A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |